Description: One of the easier eyebright species to identify; viewed from above the flowers and leaves are arranged in four rows along the stem. Common on cliffs, sand dunes etc. around the coast.

All names: Euphrasia tetraquetra (Breb.) Arrond.; Euphrasia occidentalis Wettst.; Euphrasia officianalis ssp. tetraquetra Breb.

Distribution Map from NBN: Euphrasia tetraquetra at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Euphrasia tetraquetra at iNaturalist World Species Observations database.